Everlast Cardio Strike Bag Kit PVC, Rubber Achieve a Great full body workout with the Everflex Cardio Strike Bag Kit! The Everflex Cardio Strike Bag Kit includes an intense 20 minute calorie burning workout DVD, Neoprene Heavy Bag gloves and a foot pump for easy inflation. The easy to assemble inflatable bag adjusts to an approximate height of 53. Everflex technology allows the freestanding heavy bag to absorb substantial impact while maintaining base stability. High density plastic base holds up to approx. 65 pounds of water or approx. 95 pounds of sand for stability.